Carpenter&#39;s tool



March 31, 1925. 1,531,512 r F. SCHAEFER 1 CARPENTER S TOOL jZ Jchaefen Patented Mar. 31, 1925.

FRED SCHAEFER, OF SAN ANTONIO, TEXAS.

CARPENTERS TOOL.

Application filed May 20, 1922. Serial No. 562.475. I

T all whom it may concern:

Be it known that I, FRED SGI-IAEFER, a citizen of the United States, residing at San Antonio, in the county of Bexar and State of Texas, have invented a new and useful Carpenters Tool, of which the following is a specification.

This invention relates to carpenters tools, and more particularly to tools for tightening and holding boards for nailing inthe construction of floors, ceiling and the like.

The object of the invention is to provide a tool of this character, which when apr plied will press any board straight and hold its position until the board is nailed and the tool released.

Another object is to provide a tool of this character, which is simple in construction, and may be quickly applied or. removed and easily operated.

i/Vith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made Within the scope of what is claimed'with- 3 vention.

In the accompanying draw1ngs:

Figure 1 represents a side elevation of a tool emistructed .in'accordance with this in vention shown applied.

Fig. 2 is a front elevation thereof.

Fig. 3 is a detail section taken on the line 33 of Fig. 1, and

Fig. 1 is a transverse section taken on the line l4t of Fig. 1.

In the embodiment illustrated, the tool constituting this invention comprises a handle 1 here shown in the form of a metal bar having a hand grip 2 of wood or other suitable material at its outer end, with its inner end bifurcated, and the furcations 3 and 4 thereof bent laterally outward to form supports for members presently to be described.

A support engaging member is carried by the bifurcated end of the bar 1 and'eomprises a stirrup-shaped member 5, the side bars 6 and 7 of which are designed to straddle a timber shown at T, on which the out departing from the spirit of the indevice is to be mounted, and-to which the board is to be nailed. I

These side members 6 and 7 are inwardly ofiset at their upper ends to provide clamping jaws 8 and 9 between which the bifurcated end of the handle bar 1 is rivetedas 1s shown clearly in Fig. 2, the furcations, 3 and 4 projecting laterally beyond the stirrup members 6 and 7. The furcation 4 as shown, is inclined inwardly and has pivotally connected therewith a support engaging member 10. This member 10 vhas spurs or teeth 11 at its free end which are designed to bite into the frame or timber T as shown in Fig. 1 whenthe tool is in use. A headed stud 12 is carried by the outer face of the member 10 near its free' end and is engaged by arm 13 whi'chis bifurcated at its rear end and pivotally connected withthe opposed ja ws, 8 and 9 as shown at 14. A spring-15 is arranged between the'member 10 and the arm 13 and operates to yieldably hold the biting merry ber 10 into engagement with the frame member T=.forv a purpose presently to be described. I f

A board engaging bar 16 is pivotally connected at itsinner end to the furcation'3 of the handle and. is preferably made in verted U-shaped in cross section=as shown in Fig. 3, the side membersof said U-shaped bar straddling the furcation 3, so that when swung in upwardv position, the connecting cross bar 17 will engagethe upper edge of the arm 3 and limit the'upward moven'ient of said member-'16., Carriedby the outer,

endof the arm 16 is-a head 18'here shown: I

of substantially T-shape formed bybendi'ng a strip of metal as shown, in Fig. .2 with the cross bar 19 thereof provided intermediate its ends with a U-shaped recess 20 which is designed to fit over thetongue I or rib 2? when the tool is used inconnection with tongued and grooved boards, shown at B 1n Flg. 1.

The cross bar19 of the head 18 is preferf ably made channel-shaped to increase its strength, and said head is designed to bear agamst the board B to be hailed as is shown clearly 111 Fig. 1. Y

Carried by the said members 6 and 7" of' the stirrup 5 are vpivoted pa'wls or' dogs '21 and 22. These dogs 21 and 22 are pivotally mounted iutern'iediate their ends in keepers Gil 3 carried by the outer faces of the members 6 and 7 with their pointed ends 24 normally directed toward the opening between the members 6 and 7 by means of spring fingers 25 carried by the members 6 and 7 and which extend under the curved ends 26 of the dogs as is shown clearly in Fig. 2.

. A latch or locking bar 27 is pivoted at one end to the lower end of the stirrup member 6, and is designed to span the space between said members, the free end of said arm having a laterally extending recess 28 adapted to interlockingly engage the shank 31 of a set screw 30. The free end of the latch bar has a finger grip 29 shown clearly in Fig. .2 to facilitate the opening and closing thereof. It is of course understood that when the tool is applied to a timber T withthe members 6 and 7 straddling said timber, this latch bar 27 is swung under the timber and engaged with the set screw 30, and said screw tightened up to lock the tool in operative position on the timber.

In the use of this tool, when it is desired to nail boards 13 to. supporting timbers T either to form floor, ceilings or sidewalls, the stirrup 5 is engaged with one of the 2x 1 supporting timbers T by straddling as shown-in Fig. 1, and isheld engaged therewith by the latch 27. After the tool has been so mounted, the arm 16 is swung laterally into the position shown, with the head 18 thereof abutting the edge of theboard B to be nailed or straightened and when so positioned, the handle member 1 is swung forwardly, which causes the gripping plate or arm 10 to move forward with it, and when said handle is released, the biting-teeth 11 of said arm engage the upper edge of the timberT while the dogs 21 and22 bite into the opposed side'faces thereof, and thus securely hold the tool in this position.

It'w-ill thusbe seenjthat when'the tool is engaged as above deseribedthere will be no danger of its accidentally releasing, and it will securely hold the board until it has been nailed and the dogs 21 and 22, and the spur 3 I claim:

1. In a tool of the class described, the com bination of a main lever, a stirrup shaped memberfixed to one end of said lever, said lever end being bifurcated and the furcations thereof extended laterally in opposite directions in planes at right angles to the members of the stirrup, a pivoted pushing arm carried by one of said furcations and a spring ressed pawl by the other, the stirrup having a cross bar in the form of a latch to extend under a support and connect said stirrup to the support, said pawl being outwardly bowed and provided with a lateral projection near its biting end on its outer face, an arm pivotally carried by said lever and adapted to engage said lateral projection, and a spring arranged between said pawl and arm to yieldably hold the biting end of the pawl in engagement with the support in connection with which it is to be used.

2. In a tool of the class described, the combination of a main lever, in the form of a metal bar bifurcated at its lower end with the furcations thereof bent laterally outward edgewise of the bar, a stirrup-shaped member straddling said bifurcated end with the furcations thereof extending in opposite directions between the members of the stirrup in planes at right angles thereto, a work engaging bar pivotally connected atits inner end to one of the main lever furcations and made inverted U-shaped in cross section with the side members thereof straddling the fursubstantially T-shaped head carried by the outer end of said work engaging bar, a support engaging pawl carried by the other furcation of said lever, and means for locking said pawl engaged with a support.

In testimony that ,I claim the foregoing as my own, I have hereto atlixed my signature in the presence of two witnesses.

ALBERT G. BASSE, I-I. SonIPPEs. 

